The secret to LPS success is......?

[Douglas]

Any of my LPS seems to perrish after a month or two, whats up with that? I keep SPS, Clams, Anenomes, and all kinds of inverts and fish, but LPS,...I seem to have no luck with LPS, what's the trick?

PH 8.1-8.4
Kh 8.5
Cal 450
Mag 1350
Po3 - .00ppm
No3 - 0
temp 78.8
Sal - 1.025
ATI hybrid lighting.